Sensors With Multifold Nanorod Metasurfaces Array Based on Hyperbolic Metamaterials

The sensors with multifold nanorod metasurfaces array based on hyperbolic metamaterials with a multi-film structure are proposed in this paper. The Fano-like effect is analyzed to explain the coupling between different hyperbolic metamaterials structures. The sensors can be improved not only by changing the structure parameters, but also by changing the metamaterials' properties, such as filling factor, length and arrangement patterns are studied. The performance of the sensor is improved four to five times in comparison with the original structure through increasing the number of the hyperbolic metamaterials structures. This will lead to new applications in optical switches and other fields.